Physics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsm23c1636c&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #SM23C-1636
Physics
[2740] Magnetospheric Physics / Magnetospheric Configuration And Dynamics, [2756] Magnetospheric Physics / Planetary Magnetospheres
Scientific paper
We investigate axisymmetric solutions of Saturn's magnetospheric equilibrium which includes plasma toroidal rotation. The density and temperature distributions of water group ions, thermal and suprathermal electrons at equator are taken as the model input parameters based on the Cassini data. The rotating equilibrium solutions show that the current sheet has a half-width of about 2 Saturn radii (Rs) and extends from 7 to 13 Rs with its maxima current density at 9 Rs and the plasma beta can reach unity close to the equatorial plane. We have also developed rotating equilibrium model of Saturn magnetosphere to fit the measurement of Voyager 1 and 2 which passed by Saturn with their orbit away from Saturn's equator in 1980's. With appropriately chosen input parameters in the equatorial plane, we demonstrate that the model solutions can also fit the mid-latitude data from Voyager 1 and 2.
Cheng C. Z.
Chou M.
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